Any Instrument Tuner

Use the microphone on your smartphone to turn it into a tuner for a guitar, uke, violin, elastic band creation or whatever else you want to tune.

This app will analyse the pitch of any sound detected and attempt to detect and show which notes are being played. The loudest note will also be displayed with a sliding tuner bar that shows how close to being in tune your instrument is.

Accuracy of the tuner is +/- 0.1 semitone.

Features:
+ Frequency analysis of live audio recording
+ Notes detected displayed on a keyboard octave
+ Loudest note detected shown with tuner display

Not implemented yet:
- Harmonic isolation (sometimes playing one note on some instruments is detected as a chord due to the way harmonic frequencies are produced)
- Chord identification (notes in a chord are detected and displayed on a piano keyboard but the chord isn't yet identified)